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  2. Fusion energy gain factor - Wikipedia

    en.wikipedia.org/wiki/Fusion_energy_gain_factor

    A fusion energy gain factor, usually expressed with the symbol Q, is the ratio of fusion power produced in a nuclear fusion reactor to the power required to maintain the plasma in steady state. The condition of Q = 1, when the power being released by the fusion reactions is equal to the required heating power, is referred to as breakeven , or ...

  3. Lawson criterion - Wikipedia

    en.wikipedia.org/wiki/Lawson_criterion

    Energy per reaction is the energy released in each fusion reaction; This equation is typically averaged over a population of ions which has a normal distribution. The result is the amount of energy being created by the plasma at any instant in time. Lawson then estimated [5] the radiation losses using the following equation:

  4. Optimal foraging theory - Wikipedia

    en.wikipedia.org/wiki/Optimal_foraging_theory

    The curve represents the energy gain per cost (E) for adopting foraging strategy x. Energy gain per cost is the currency being optimized. The constraints of the system determine the shape of this curve. The optimal decision rule (x*) is the strategy for which the currency, energy gain per costs, is the greatest.

  5. Q factor - Wikipedia

    en.wikipedia.org/wiki/Q_factor

    The Q factor is a parameter that describes the resonance behavior of an underdamped harmonic oscillator (resonator). Sinusoidally driven resonators having higher Q factors resonate with greater amplitudes (at the resonant frequency) but have a smaller range of frequencies around that frequency for which they resonate; the range of frequencies for which the oscillator resonates is called the ...

  6. National Ignition Facility - Wikipedia

    en.wikipedia.org/wiki/National_Ignition_Facility

    Sankey diagram of the laser energy to hohlraum x-ray to target capsule energy coupling efficiency. Note the "laser energy" is after conversion to UV, which loses about 50% of the original IR power. The conversion of x-ray heat to energy in the fuel loses another 90% – of the 1.9 MJ of laser light, only about 10 kJ ends up in the fuel itself.

  7. Betz's law - Wikipedia

    en.wikipedia.org/wiki/Betz's_law

    The Betz Limit is the maximum possible energy that can be extracted by an infinitely thin rotor from a fluid flowing at a certain speed. [5] In order to calculate the maximum theoretical efficiency of a thin rotor (of, for example, a wind turbine), one imagines it to be replaced by a disc that removes energy from the fluid passing through it ...

  8. Timeline of nuclear fusion - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_nuclear_fusion

    The JT-60 tokamak in Japan produced a high performance reversed shear plasma with the equivalent fusion amplification factor of 1.25 - the current world record of Q, fusion energy gain factor. Results of European-based study of heavy ion driven fusion power system (HIDIF, GSI-98-06) incorporates telescoping beams of multiple isotopic species.

  9. Talk:Fusion energy gain factor - Wikipedia

    en.wikipedia.org/wiki/Talk:Fusion_energy_gain_factor

    "The fusion energy gain factor, usually expressed with the symbol Q, is the ratio of fusion power produced in a nuclear fusion reactor to the power required to maintain the plasma in steady state. The condition of Q = 1, when the power being released by the fusion reactions is equal to the required heating power, is referred to as breakeven, or ...